Somerset & Birmingham Bears win to ensure they will end top of their respective groups
Bears beat Notts despite Shaheen Shah Afridi's four wickets in first over of Bears' run chase
Sussex's Ravi Bopara and Derbyshire's Tom Wood score centuries in victories for their sides
Lancashire v Yorkshire abandoned without a ball bowled
Worcestershire v Durham ends in tie on DLS after early end because of rain
Notts 18-1 v Birmingham Bears
Image source, Getty ImagesHenry Brookes gets the better of Alex Hales in the third over at Trent Bridge and that's a huge wicket for North Group leaders Birmingham Bears.
Worcs v Durham 188-4 (19 overs)
Pat Brown absolutely walloped back over his head by Ashton Turner.
Durham averaging 10 an over almost at New Road, laying the gauntlet down.
Lancashire v Yorkshire (19:00 BST)
No surprises here, sadly. We've just had a hot, dry spell of course...
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Worcs v Durham 171-4 (18 overs)
There are drops - and there are drops.
Dear me, Usama Mir. He drops a dolly off Ollie Robinson.
Mitchell Santner can't be happy with that. The Kiwi finishes with very respectable figures of 1-25 off his four overs.
Worcs v Durham 168-4 (16.5 overs)
Graham Clark goes for 78, holing out to Adam Hose at mid-on, but the Durham opener has already done the damage with a wonderful innings.
Notts Outlaws v Birmingham Bears (18:30 BST)
Image source, Rex FeaturesRight, three more games get under way shortly - including a Midlands derby in Nottingham.
Trent Bridge has been a happy place for Notts in the Blast this summer, winning four of their five T20 games there.
But tonight they host a rampant Birmingham Bears side on a five-match winning streak, so something has to give.
The Bears are already in the quarter-finals and the Outlaws could seal their spot tonight by beating the North Group leaders - if other results go their way too.
Worcs v Durham 157-3 (15.1 overs)
Worcestershire needed that.
Lovely spin from Usama Mir beats Brydon Carse all ends up and there go the bails.
Worcs v Durham 157-2 (15 overs)
The half-century partnership was brought up in five overs.
Indeed, Brydon Carse is already up to 39 off 18 balls and Graham Clark on 71 off 41. Both just hit Dillon Pennington for six in that 15th over - 21 runs in total off the over.
This is some wonderful batting from the Durham pair. They have wickets in hand and boy, do they know it.
Worcs v Durham 128-2 (13 overs)
It's a tough diving chance for Ed Pollock as Brydon Carse flashes at one but he drops it.
Then cricket karma follows as Carse smashes the final two balls of Usama Mir's over for six to capitalise on the let-off.
Worcs v Durham 113-2 (12 overs)
Image source, Getty ImagesDurham opener Graham Clark has batted excellently and fully deserves this half century.
Three fours and two sixes among his 50 runs.
Worcs v Durham 103-2 (11 overs)
Brydon Carse doesn't take long to get settled, crashing a shot right back past Brett D'Oliveira who attempts a half-hearted caught and bowled but he was never getting near it.
Then, Carse smashes D'Oliveira right back down the ground for a huge six. Big over for Durham as the rate goes back up to more than nine an over.
Worcs v Durham 86-2 (9.2 overs)
And then next ball Santner gets a wicket!
The New Zealand man was clearly lulling Michael Jones into a false sense of security. Jones launches one and is comfortably caught by Kashif Ali.
Durham v Worcs 86-1 (9.1 overs)
Mitchell Santner into the attack for the Pears and begins with one of the widest wides you'll ever see from a spin bowler.
Worcs v Durham 84-1 (9 overs)
A pair of maximums for Graham Clark, who twice crashes spinner Usama Mir over long-on.
Durham going at more than nine an over here, incredibly lusty batting from the visitors.
Worcs v Durham 63-1 (7.2 overs)
Now, spinner Usama Mir gets the treatment from Michael Jones.
Still eight an over for Durham which is a nice rate from the visitors. They have to win this, remember, to have any chance of progression.
Oh, and another! This time off Pears captain Brett D'Oliveira.
The third day of the second Ashes Test at Lord's has been brought to an end slightly earlier than planned because of rain.
England may be glad of that, having conceded a first-innings lead to Australia and then struggled to make breakthroughs with the ball.
Here's a lowdown on Friday's play...
England's hopes in the second Test and the Ashes hang by a thread after an awful third day against Australia at Lord's.
Read MoreWorcs v Durham 41-1 (5.2 overs)
Pat Brown just threw that one up there - and Michael Jones obliged.
Huge, huge shot over deep square leg and there's a delay while we await a replacement ball.
Yep, that's how far it went.
Worcs v Durham 34-1 (5 overs)
Brilliant defensive work from Michael Jones - two really full balls from Adam Finch, right at the wicket and the Durham batter digs them both out.
And then another goes for a leg bye as a Finch lbw appeal goes unheeded.
But just two from the over which will please Worcestershire who could seal a quarter-final place tonight if they win this.
Worcs v Durham 32-1 (4 overs)
Image source, Getty ImagesPat Brown is brought into the attack after that mis-field. Goes for four first ball off as Graham Clark dispatches him tidily to the boundary.
Not an ideal start for the Pears' top Blast wicket-taker this summer.
Brown thinks he's got Michael Jones caught behind with the penultimate ball of the over and wicket-keeper Ben Cox is celebrating too but "not out" is the decision from the umpire.
Durham averaging a healthy eight an over.
Worcs v Durham 25-1 (3 overs)
Dillon Pennington back for his second over - and it's not as successful as the first, 12 off it.
Three boundaries off it for Michael Jones. The first two fours were good shots, the third a horrific fumble from Pat Brown in the field.